One Lane Road Ahead Rigid Sign
Item #
X4729-D5H
Sign Reads
One Lane Road Ahead
Compliance
Temporary Traffic Control Signs

Note:

These lightweight signs are provided with a fiberglass crossbrace (1/4" thick vertical and 3/16" thick horizontal ribs), 4-heavy duty polycarbonate pockets, plus hook and loop for easy storage.
Also Available: MUTCD W20-4 One Lane Road Ahead Roll-Up Sign X4729

One Lane Road Ahead Rigid Sign

MUTCD W20-4 Available

Size:

Material:

Laminate:

Mounting:

Packaging:

Price:
$150.95
Qty
Each
  • 1–2
    $150.95
  • 3–4
    $148.00
  • 5–9
    $146.50
  • 10–19
    $145.75
  • 20–39
    $144.50
  • 40+
    $141.50
0 In Stock
Special freight arrangements are necessary.

Need a quote for a large order? Call 800‑274‑6273 or email us.

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Product Information

Details

Rigid Aluminum Signs

A One Lane Road Ahead Sign is designed to inform drivers that one or more lanes will be closed ahead, leaving only one lane open for traffic to pass through.

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Rigid signs material grades

  • .080" Fluorescent Diamond Grade Work Zone Reflective Aluminum signs are MUTCD compliant when used day or night.
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Rigid Sign Bracket / Stand Compatibility

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Rigid Sign Features

  • Sign Weight: 11 lb
  • Mounting holes: 2 holes at 3/8" diameter, positioned top and bottom
  • Rigid Aluminum Sign

MUTCD Compliance

2009 Edition Part 6 Figure 6F-2. Methods of Mounting Signs Other Than on Posts

The fourth example shows an orange diamond-shaped sign with a black border and letters with the words "UTILITY WORK AHEAD" in three lines mounted on a vertical pole that is mounted on four horizontal supports. The distance from the bottom of the sign to the bottom of the supports is labeled as "1 ft MIN. above the traveled way." At the top of the sign, three orange flags are shown mounted equidistant apart from each other on short staffs that extend out from the top of the vertical pole at 45-degree angles.

  • Methods of Mounting Signs Other Than on Posts

Compliance

Section 6F.21 ONE LANE ROAD Sign (W20-4)

Standard

  • The ONE LANE ROAD (W20-4) sign shall be used only in advance of that point where motor vehicle traffic in both directions must use a common single lane (see Section 6C.10). It shall have the legend ONE LANE ROAD, XX FEET, XX MILES, or AHEAD.

Source: 2009 MUTCD

When to Use 36″ and 48″ Temporary Warning Signs

According to the MUTCD:

Type of Roadway Sign Size
Conventional Road 36 × 36″
Freeway or Expressway 48 × 48″

Transportation engineers may find this answer acceptable since they have a deeper understanding of the MUTCD than most, but not everyone has this knowledge. Luckily, definitions of these terms are provided to help make some sense of what they are trying to convey. Here’s how the MUTCD defines each of those types of roadways:

  • "Conventional Road" is a "street or highway other than a low-volume road, expressway, or freeway."
  • "Low-Volume Road" is a facility lying outside of developed areas of cities, towns, and communities, which serves fewer than 400 vehicles per day on average. A low-volume road shall not be a freeway, an expressway, an interchange ramp, a freeway service road, a road on a designated State highway system, or a residential street in a neighborhood.
  • "Expressway" is a divided highway with partial control of access.
  • "Freeway" is a divided highway with full control of access.

Still confused? It's not just you. Generally speaking, if the road is a divided highway with a concrete barrier or median, a 48 × 48″ sign will be required. A 36 × 36″ sign can be used on all other types of roadways.

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